I have used many brands of shampoo but didn’t noticed much difference. However, Park Avenue Beer shampoo does have a good effect on my hair. It does not damage the hair if I use somewhat larger amount or I think it is less harsh. It does not stink(I thought my hair will smell like beer:) and leaves my hair somewhat better. Interestingly, I think it is one of the few shampoos which are targeted for men. Also it is not very expensive, definitely worth buying.